Re: Can't mount RAID 5: "Can't find ext3 filesystem"
On Wed, Feb 25, 2009 at 3:33 AM, Alex Samad <alex@samad.com.au> wrote:
> On Tue, Feb 24, 2009 at 07:29:12PM -0500, Jose Legido wrote:
>> On Tue, Feb 24, 2009 at 7:09 PM, Alex Samad <alex@samad.com.au> wrote:
>> > On Tue, Feb 24, 2009 at 06:53:54PM -0500, Jose Legido wrote:
>> >> Hello!
>> >> I have one IDE hard disk hda with the system (debian testing)
>> >> I have a RAID5 with devices sda,b,c,d. My raid works fine.
>> >> One day, I reboot and my hda is converted to sda.
>> >
>> > you upgraded your kernel ? at some point in time the kernel started to
>> > address sata devices as sd instead of the old way of hd.
>>
>> No, I don't upgrade my kernel.
>
> anything else change
>
>
>> My changes are made in /boot/initrd.img-2.6.26-1-686
>>
>> >
>> > start using LABEL or UUID instead of device paths like /dev/hda1. check
>> > /etc/fstab and your grub menu if you use grub of lilo
>>
>> I change this later
>>
>> >
>> > as for the raid, check out the /etc/mdadm/mdadm.conf, make sure your md
>> > devices are not defined with device, but with UUID's
>> >
>> My mdadm.conf
>> ARRAY /dev/md0 level=raid5 num-devices=4
>> UUID=0768075c:5ca2c100:d4d8cd15:f227f389
>>
>> How can I know md0 filesystem?
>
> what i would do is
>
> reboot the system but with the kernel options init=/bin/bash (you can
> edit a grub stanza at boot up time so no need to make it permanent)
>
> then I would have a look at the system from the kernels perspective see
> what drives are available hd's or sd's. work out the problem from there.
>
> Then look at the raid device, I would try and assemble them (not
> recreate them) and see what the problem is, have a look at dmesg and
> syslog.
Too late.... I recreate, there are any diference in assemble and
recreate? Excuse me my ignorance....
Thanks!
>
> I would work it from there.
>
>
>>
>>
>> > Alex
>> >
>> >> I loaded an old kernel. Know, when I try to mount my RAID i get this error:
>> >> # mount -t ext3 /dev/md0 /mnt/raid/
>> >> VFS: Can't find ext3 filesystem on dev md0.
>> >>
>> >> What can I do?
>> >>
>> >> Thanks!!!!
>> >>
>> >>
>> >> --
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>> >>
>> >>
>> >
>> > --
>> > "Iran would be dangerous if they have a nuclear weapon."
>> >
>> > - George W. Bush
>> > 06/18/2003
>> > Washington, DC
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>>
>> --
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>>
>>
>
> --
> "The legislature's job is to write law. It's the executive branch's job to interpret law."
>
> - George W. Bush
> 11/22/2000
> Austin, TX
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